Home / 77,995.78-117,006.60-27,381.68

Finding the Fourth Proportional to 77,995.78, 117,006.60 and 27,381.68

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Solution

The fourth proportional to 77,995.78, 117,006.60 and 27,381.68 is: 41,077.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,995.78 : 117,006.60 = 27,381.68 : x
  2. Step 2: Convert to fraction form
    77,995.78/117,006.60 = 27,381.68/x
  3. Step 3: Cross multiply
    77,995.78x = 117,006.60 × 27,381.68
  4. Step 4: Simplify right side
    77,995.78x = 3,203,837,279.09
  5. Step 5: Solve for x
    x = 3,203,837,279.09/77,995.78
  6. Step 6: Final answer
    x = 41,077.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.